489576905 has 4 divisors (see below), whose sum is σ = 587492292. Its totient is φ = 391661520.

The previous prime is 489576889. The next prime is 489576917. The reversal of 489576905 is 509675984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 389036176 + 100540729 = 19724^2 + 10027^2 .

It is not a de Polignac number, because 489576905 - 2⁴ = 489576889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48957686 + ... + 48957695.

It is an arithmetic number, because the mean of its divisors is an integer number (146873073).

Almost surely, 2^489576905 is an apocalyptic number.

It is an amenable number.

489576905 is a deficient number, since it is larger than the sum of its proper divisors (97915387).

489576905 is an equidigital number, since it uses as much as digits as its factorization.

489576905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97915386.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The square root of 489576905 is about 22126.3848154189. The cubic root of 489576905 is about 788.1465415192.

The spelling of 489576905 in words is "four hundred eighty-nine million, five hundred seventy-six thousand, nine hundred five".